To use all the features on this website,
JavaScript must be enabled in your browser.

Askar 0.75x Reducer for 60F Flatfield Apochromat

This reducer shortens the focal length of the Askar 60F by a factor of 0.75x and considerably reduces the exposure time for astrophotography.

The reducer is developed for the flatfield apo 60F

The focal length is reduced to 311 mm

The focal ratio is improved from f/6.8 to f/5.1

The field quality is kept high by a triplet construction with ED glass

The reducer is screwed to the M50x1 thread of the extension tube of the apo

The connection on the camera side is M48x0.75 (via adapter)

The working distance from the M48 thread is 55 mm

M48x0.75 thread for 2" filters in the adapter

Manufacturer: Askar Sharpstar

Product number: ASRED60F

EUR 236,00

incl. 19 % VAT (DE)

The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.

excl. 7.95 € shipping costs (DE)

Please log in to calculate shipping costs to your country.

more details to the shipping costs ...

rating: 5.0 of 5

Roll over image to zoom in or klick it. The appropriate zoom factor ist adjustable with the mouse wheel.

Askar 0.75x Reducer for 60F Flatfield Apochromat

This reducer shortens the focal length of the Askar 60F by a factor of 0.75x and considerably reduces the exposure time for astrophotography.

The reducer is developed for the flatfield apo 60F

The focal length is reduced to 311 mm

The focal ratio is improved from f/6.8 to f/5.1

The field quality is kept high by a triplet construction with ED glass

The reducer is screwed to the M50x1 thread of the extension tube of the apo

The connection on the camera side is M48x0.75 (via adapter)

The working distance from the M48 thread is 55 mm

M48x0.75 thread for 2" filters in the adapter

Details..
Technical data..
In the box..
Manufacturer infos..
Safety informations..

Askar 0.75x Reducer for 60F Flatfield Apochromat

The focal reducer shortens the focal length of the flatfield apo from 408 mm to 311 mm. The field correction is maintained. The exposure times are reduced to about 56 %. The shortening factor increases the field of view and the apo becomes even more exciting for the wide field range. Especially when working with smaller sensors, the 0.75x reducer offers a real alternative to an additional telescope or camera lens.

Type:	Focal reducer
Suitable for:	Askar 60F flatfield apo
Shortening factor:	0.75x
Optical design:	Triplet with ED glass
Connection on both sides:	M50x1 thread
Connection to camera:	M48x0.75 (via adapter)
Working distance:	55 mm from the M48 thread
Filter connection:	M48x0.75 thread for 2" filters in the adapter
Weight:	0.2 kg

Focal reducer

Dust caps

Manufacturer / Importeur:	Teleskop-Service Ransburg GmbH
Street:	Von-Myra-Str. 8
ZIP / City:	85599 Parsdorf
Country:	Germany
Telefon number:	+49 89 99228750
Email:	info@teleskop-service.de
Website:	www.teleskop-service.de

Safety informations: PDF Download

Recommended accessories

Adaptors

TS-Optics T Ring from M48 Thread to Nikon F Mount

EUR 29,90

TS-Optics T Ring from M48 Thread to Sony / Minolta A Mount

EUR 27,90

TS-Optics T Ring from M48 Thread to Canon EF EOS Mount

Only 3 pcs left in stock

EUR 27,90

TS-Optics T-Ring M48 Adapter for Canon EOS R and RP System Cameras

EUR 37,00

TS-Optics M48 Adapter Ring for Sony Alpha Nex / E-mount cameras

EUR 31,95

TS-Optics T-Ring from M48 to Pentax K mount

EUR 36,00

TS-Optics M48 Adaptor for Olympus OM SLR cameras

Only 3 pcs left in stock

EUR 49,00

TS-Optics M48 Adapterring für Kameras mit Micro-Four-Thirds Mount (Panasonic, Olympus)

EUR 39,90

TS-Optics T-Ring from M48 to Leica and Panasonic L mount

EUR 49,90

Cleaning & Collimating

TS-Optics Optical Soft Microfibre Cleaning Cloth and Bag, 26x24 cm

EUR 7,50RRP EUR 11,95you save 37.2% (EUR 4,45)

%

Customers who bought this product also bought...

Askar 60F 60 mm f/6.8 Quadruplet Flatfield Apochromat

Only 1 pcs left in stock

EUR 535,00RRP EUR 739,00you save 27.6% (EUR 204,00)

%

Similar Products

Askar 0.75x Reducer for Askar 71F Flatfield Apo

Only 2 pcs left in stock

EUR 259,90

Askar 0.75x Reducer for 91F Flatfield Apochromat

Only 2 pcs left in stock

EUR 236,00

Reviews

Written by Dermot Keane
on 2026-04-29

"The Askar reducer is very well made, its worth the cost for astrophotography. Highly recommended. "

0 Product 0 Product